Title:
発泡断熱紙容器用紙基材、発泡断熱紙容器用シートおよび発泡断熱紙容器
Document Type and Number:
Japanese Patent JP7117090
Kind Code:
B2
Abstract:
To provide a foamed heat-insulation paper container, a paper base material for a foamed heat-insulation paper container, and a sheet for a foamed heat-insulation paper container which has excellent heat insulating properties and a beautiful surface appearance.SOLUTION: A paper base material 3 for a foamed heat-insulation paper container includes polyvinyl alcohol layers 2 having a formation amount of 0.05 to 0.5 g/m2 per one surface on both surfaces of a paper base material 1 having an air permeability resistance of 2.0 to 6.0 s/g/m2 per basis weight; the sheet 5 for a foamed heat-insulation paper container includes a thermoplastic resin layer 4 at least on one surface of the paper base material 1 having an air permeability resistance falling in the range described above per basis weight and includes the polyvinyl alcohol layer 2 having the formation amount described above between the paper base material 1 and the thermoplastic resin layer 4; foamed heat-insulation paper is used for at least one of a barrel member 6 and a bottom plate member 7 in the foamed heat-insulation paper container 8; the foamed heat-insulation paper includes a foamed resin layer 9 comprising a thermoplastic resin at least on one surface of the paper base material 1 having the air permeability resistance falling in the range described above per basis weight and includes the polyvinyl alcohol layer 2 having the formation amount described above between the paper base material 1 and the foamed resin layer 9.SELECTED DRAWING: Figure 3
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Inventors:
Ryo Shimizu
Tomohiro Endo
Yuki Tamura
Tomohiro Endo
Yuki Tamura
Application Number:
JP2017176238A
Publication Date:
August 12, 2022
Filing Date:
September 13, 2017
Export Citation:
Assignee:
Oji Holdings Co., Ltd.
International Classes:
B65D65/40; B32B5/18; B32B27/00; B32B27/10; B32B27/30; B32B27/32; B65D3/22; B65D81/38; D21H19/20; D21H27/30
Domestic Patent References:
| JP2012214038A | ||||
| JP2003226393A | ||||
| JP2004244729A | ||||
| JP2013213286A |
Foreign References:
| US6379497 |
Attorney, Agent or Firm:
Patent Attorney Corporation Isono International Patent and Trademark Office